[Elecraft] Bad joints on KPA100 again - with photo...

[Rod N0RC]

Gerhard,

The pads in your photo appear to be ground-plane pads. Ground-plane pads 
require greater heat energy to solder, because the heat is absorbed and 
radiated by the larger surface area. Increasing you soldering iron temp 
to about 426 Deg C (800 Deg F) will solve this problem.

--
73, Rod N0RC


----- Original Message ----- 
From: "Gerhard Schwanz" <gerhardschwanz at yahoo.de>
To: <elecraft at mailman.qth.net>
Sent: Friday, January 28, 2005 7:24 AM
Subject: [Elecraft] Bad joints on KPA100 again - with photo...


Hi again,

just took a photo. You see it seems to affect only a special kind of 
hole (see picture). You can see on the picture that other holes work 
well.

http://www.gs-roboter.de/problem.htm

Iron is temp regulated at 330 deg C. Same like before. I already changed 
iron and solder. To no avail.

73 again.